B-Type Natriuretic Peptide (BNP) Blood Test
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Test Code: 140889
Specimen Type: Blood
Results: 2-3 business days
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Description:
B-Type Natriuretic Peptide (BNP) Blood Test
This test measures the amount of Brain Natriuretic Peptide or BNP in the blood. BNP is produced by the heart. Elevated levels of BNP often indicate the heart is working harder than normal such as when a person is suffering from heart failure. Test results that show higher-than-normal BNP levels should be followed up with your doctor.
A B-type natriuretic Peptide test can be ordered when someone is experiencing symptoms such as difficulty breathing or swelling in the arms and legs which may be due to heart failure. It may also be used to monitor how well a person is responding to treatment for heart failure. Because BNP levels tend to increase with age, a person's doctor may need to determine what a normal BNP value for them should be.
This test is often ordered along with an NT-Pro BNP test. Please see our Heart Health category for additional tests to screen for heart disease.
Turnaround time for the BNP test is typically 2-3 business days.
Where can I find a BNP Test near me?
Check our lab finder to locate a collection site in your area.
Frequently Asked Questions:
What does a BNP blood test measure?
A BNP test measures the level of B-Type Natriuretic Peptide in the blood. BNP is a protein produced by the heart. When the heart is under stress, it typically produces more BNP than normal.
Why would a doctor order a BNP test?
A BNP test is typically ordered to assess how hard your heart is working. BNP can be used to aid in the diagnosis of heart failure or to rule out heart conditions when someone is experiencing ambiguous symptoms.
What does a high BNP level mean?
A high BNP level means your heart is under heavier stress than normal. The most common cause of this is heart failure. Other conditions, such as kidney disease, lung problems, and severe infections, can also cause elevated BNP.
What is a normal BNP level by age?
BNP levels naturally increase as a person ages. A level under 100 pg is optimal. For a person without heart failure, under the age of 50, BNP levels are normally less than 450pg. For ages 50-75, under 900 pg is normal. For someone over 75, under 1,800 pg is normal.
Note: Result turnaround times are an estimate and are not guaranteed. Our reference lab may need additional time due to confirmation/repeat testing, weather, holidays, or equipment maintenance.
Requirements:
While the BNP test does not require fasting, your doctor may recommend 8-12 hours of fasting prior to specimen collection. Someone who is taking heart medications should consult with their prescribing physician to determine if they should stop prior to being tested.
It is recommended that someone taking Biotin (also known as vitamin B7 or B8, vitamin H, or coenzyme R) stop consumption at least 72 hours prior to the collection of a sample
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